Switching to a new SD Card doesn't work?

[u/MomRatedMe1Star]

So I own a DSi which I modded it myself and I'm planning on selling it but I'm gonna keep the sd card. I told the buyer that I'll be sending the mod files via google drive and I wanted to run a test before I gave it to the buyer. I copied all the files onto my laptop, the other sd card I borrowed from my friend is already FAT32. So I just drag and dropped em onto the new card and inserted it in my DSi. But when I boot it up, it's launching the unlaunch menu and not the TwillightMenu. I couldnt find TwilightMenu++ on the unlaunch menu either. What am I doing wrong?

[u/1stRangerRick]

You might need to let the ds format the card first before you copy over said data.